Chiesa's next team will definitely be an important part if he stays in Italy, it could change the league in the sense that it will make one team better. Juventus already doesn't want him and they made that known easily, but we need to make sure that where he goes could actually benefit from him.
I do not think that he is a bad player at all, I think he could help a team out, and if he goes to Roma, then suddenly Roma is better thanks to him as well. It's a mistake to let him go if you ask me, he could help Juventus massively, but for some reason manager just came in and decided that he doesn't want him and that was the end of it. In any case, it's good that he can at least leave for a team that will want him, that matters for him.
Thiago Motta also doesn't seem to need Chiesa because after all, for their first match yesterday against Como also the fact that Chiesa was not included in the Juventus squad. Thus, it will certainly be a good choice for Chiesa to leave immediately. Because after all, with his young age, Chiesa should still be actively playing because Chiesa also has great potential as a soccer player.
But, based on one of the sources I got it looks like Chiesa also prefers to play outside Serie A and rumor has it, Barcelona is also interested in negotiating. But yes, I think if Chiesa chooses Barcelona then it seems to be very unfortunate because Barcelona also has a lot of problems. Thus, it would be better for Chiesa to immediately accept the offer even if it is from a team playing in Serie A. Because anyway, Juventus also don't need him anymore, so playing for AS Roma or maybe another top Serie A team I think would be good for Chiesa than having to play at Barcelona.
Chiesa has been the 3rd most earner in Juventus squad with €11m including bonuses. It would be some help for Juventus to raise some funds for new transfers. I hope they can use their money efficiently. No doubt the fans have missed the good old days... 
